WanderingMystic
Hero
Yeah the artificer just happens to be giving the fighter a +1 set of armor, with one of their very few items then decided to sacrifice it is a player problem not a game design problem. That like saying the fighter and the cleric got in a tiff and the cleric stopped healing him.In other words, the design of the class is built to reward people who pick the Right Options and abuse the mechanics—which were almost certainly devised to do exactly the kind of thing you describe.
People should realize the more "this is how you cheese/optimize this mechanic" becomes an integral part of the game, the more off-putting it is for the majority of players. Except the people this design direction is aimed towards are the only players the designers really care about. Certainly not the DM whose game will end up mired in drama when the Artificer gets into a spat with the Fighter and suddenly leaves them naked in the middle of a dungeon.
So the spell storing ring was created specifically for the artificer as a way of getting more spells in a half caster that should have been a full caster. Out of the 6 different games I have played with an artificer at 3 different tables everyone has chosen spell storing ring and everyone would have been grateful to have been able to change that out after its use.