I hope not, but my gut instinct is that this reflects the thinking of FDev completely. Think about it, they push paint jobs, body kits, weapon colours, and now flight suits and nameplates through the store as additional revenue. If you're willing to buy one or two additional accounts to fill your own multicrew and increase your rewards then this fits into their profit schemes very nicely indeed.
You now own 2 or 3 accounts (and remember they will need to be full Horizon's passes at the very least), plus this is 2 additional chances to sell you ship kits, paint schemes, flight suits etc. It doen't violate thier "no pay to win" ethic as it's not a "quick win" you can buy from the store. It sells additional copies of the game, and just happens to exploit the additional rewards for multi-crew...
Clever, if hypoctitical, marketing ploy. Of course to be really safe you'd have to set up your own private group for you and your alt accounts just to be sure you don't get any interlopers into your ship, but this is potentially a great way of using multi-crew to your advantage (whilst putting money in the FDev coffers) without strictly having any pay to win options.