Unless you have never relog farmed a guardian site, you're taking a hypocritical stance.
...
Fdev do not call it an exploit, by the bye. They have called it unintended gameplay. There is a very clear difference. One is bannable, the other is not.
I will have to agree with this.
Relogging is part of the game, as much as Unintended it may be
We had relogging CGs - and plenty of them. We have Guardian Sites where relogging is the common gameplay to stock up on materials
There this thing called resetting the instance - some times it's practical do to it by supercruising out then back in, some other time its more practical to do it by relogging.
But it's in the game.
I find it quite interesting that for certain type of resources they employed (longer) respawn timers.
For example Crystalline Shards, Brain Trees and Geo Features - they respawn/replenish on a timer (in Horizons at least, have not checked Odyssey)
So one cannot relog into them - however such sites provide a quite big amount of materials that relogging is usually not needed.
But not Barnacles. They produce 4-5 Meta-Alloys, then relog, then get 4-5 more, then relog.
We had CGs for this, as unbelievable it may be
Or for Encoded data provided by relogging at Jameson's Cobra.
So, they'll well aware of it, way before the first relogging CG [*]
They say it's unintended.
Yet they kept introducing relogging CGs [**]

*[i remember the first fix sometime in January/February 2019 when they fixed HGE so they disappear at a relog to menu even tho they still had timer left, but not from a quit to desktop. IMO the obvious fix for the scarcity of G5 materials would have been to leave the HGE run for the full duration, eventually shortening the timer from 33+ minutes to 5-10 minutes, but allowing one to supercruise out/in and collect materials for the duration of the HGE. No relogging necessary]
**[While applying unfortunate fixes - like all loot disappearing from a Settlement, so God forbid you crash in one, or the recent fix for Ground CZ that puts you back at the last docked station, again God forbid you crash in the CZ. And at the same time, one can still supercruise out then back in to reset an instance - so the fixes does not seem to be aimed to prevent farming, but to slow it down]