You may say something as simple as a trophy is insignificant but I would have never got that trophy for getting all teams to level 50 with my security team constantly being murdered every invasion unless I kept doing even more boring ass fultoning and grinding for the poorly designed metagame. I was pretty tired of that stuff quickly. Maybe that wouldn't happen if I did something with the defense or something but killing off dudes is pretty easy while invading and the whole FOB thing is so terrible top to bottom, who wants to deal with it anymore than they have to?
Building an FOB increases staff limits for each team though and you can direct contract your staff with good ranks. getting to lvl 50 shouldn't be as grindy as sounds like it was for you, had you upgraded the FOB.
So they want to punish you for copping out by going offline so your shit won't get stolen.... so you will be more likely to buy in-game insurance with real money? Pretty scummy.
Nah. They want to Reward players who invade high level bases, which is really hard, by making sure players who have stuff worth stealing put that stuff online. The collateral damage in all this is OP and others who try to keep their game offline through various exploits. Anyone who uses the word 'tax' in their post is wrong.