Well, i don't think its a black and white thing. Some treat it as some evil. First forget EVE and Xseries. The are just a probability solution and game mechanics choice. There are more like mass effect. Etc. You have this a feature choice and its implementation.
But think of what stargates realy mean. First very obvious It is portal to very distance location. And the true huge point in that. Your ship does need a extreem expensive FTL drive to get there.
The fakeness of most fiction vs science is that. FTL engines are very small even put in fighters. Like they are regular turboprop engines. Wich make no sense. As if the breaktrough in science wil come up with a FTL engine the size of desktop PC for a huge ship. While thruster is bigger. So that the balony in it.
Stargates and free jump can coexist. Even free far jump or any FTL solution if you take this. Jumpgates are the highway for ships with limited FTL capability.
While starships and galacy class ships are much more independand.
That is for me for realisme and hard science fiction. It comes at a cost FTL is big and exotic and expensive.
A very capable FTL solution would be excotic engine that master enormous energy from antimatter to darkenergy that wil not be pocket sizes to retrofit as a third engine to a little fighter. In ratio to ship mass. So could be as large as a third of the mass of 1km large supercarier.
It make sense that these things are very expensive so there would be something like taxes vat or toll involved. To use gates. For gates wich are even factor 10 to 25 expensive to the bggest FTL drive. So huge corporation that can aford these huge exploration vessels with expensive FTL drive for free deep space exploration. And united planets with civilisation size in few miljards per planet could aford gates. So core planets and thus save spaces.
And in reality. If trading is common the history of type of ships could be not based on classes alone, but also classic als very old to secondhand vessels like 30 years ols to common tech 15 year old to advance the topend and prototypes the nextgen. Also the little a ship and mass production the could be very common. But bigger ship could be much more uniek or small production numbers with variants and updates.
It would be realistic to have 100 or so modern medium size types ships 1000 older and the bigonce 10000 of uniek ships in small numbers.
For me gates are a game mechanic to connect save spaces together wen you are leveling up with your first old type starter ship. Even ships without FTL capability.
I don't know EVE but I do know.
Freelancer and the X-series.
Freelancer with it fastlanes is well balanced and finished games with good worked out solution. Xseries is a half asses cripple unfinished solution with a whole lotta troubles. That implementation, not feature. It doesn't mean the pure solution choice is bad. But the game will and must build around or compatble with that choice. The feature set of the game mechanic must of course fit together. And in gane development you have rushed out games. And the done wenn its one games, wich have extreme level of polish.
Implementation flaw. There is this trafic jams and smal gates bidirectional and huge ships don't go well together. Solution could be. Make the gates unidirectional huge and bigger ships have space for big FTL drives so don't depend on gates. Large save places could have several gates out and incoming.
Just like cities got highways. There are ferries where land is split by water.
While there is this Landrover to go on safaries. Or amphibious vehicle. To explore wetlands.
Aperently Elite

is a pure gateless free jump game. Thats oke. If the implementation is right and it all fits togehter with the other 1001 features.