Because different content is different content, pvp isnt pve storm, pvp games have seasons because its ways of keeping things fresh whilst seeing who is the best in each season / current time. Now IMO it would be cool if they did add something for FL but as of right now its just a "whoevers got the most time spent in there and win / losses ratio" gets put up first, perhaps if they changed how the ranking works like say first 30 matches u play count towards a score based on wins and kills that would be an ideal way to measure that. Top potd/hoh scores would be cool to but I feel u get rewarded enough by completion as is. Top free companies is a pointless statistic anyway rewarding that is irrelevant because thats not a competition.
It's match making is underwhelming thats for sure, this has been a problem since the start, as well as a natural unbalance when u have alts in play making the real ranking of a team technically higher.
They have good reason to keep these rewards exclusive as ive said many times before its the incentive or trophy you achieve for competing, it makes absolutely zero sense just because you or someone else happens to want it and now make said items easily obtainable because reasons. You dont win a trophy in real life for it to be handed out to every guy who happens to say "hey they havent given this trophy for a long time, I want it!" These Items are valuable for a reason and are one of the few items in general in the game that has massive value, why hand it out for trivial things like top fl wins.
The way they need to attract players is a more fun mode in general and more incentive for just participating, more options for wolf collars THAT ARE NOT TOP 100 REWARDS... Feedback is key but the devs / pvp team doesnt seem to care for it as most of the things that happen make you stand and think "huh? why?" there is a disconnect between the pvpers and the devs. Until feedback and suggestions are taken seriously and implemented feast will stay in the unpredictable mess that it currently Is, Gms need more power regarding pvp reports, cheaters and boosters but where is that for example? they take chat log spam more seriously then a speedhacker, you know how much of a joke that is? Doesn't set a good standard at all.
Realistically rank decay wont change much at all, It's not like those who are below will suddenly rise up from this nor will people who are high suddenly drop from top 100 its a wasted and unnecessary action. It wont be done anyway, not with the "highest score" in affect.
Real talk: Majority are just too lazy to bother and instead refer to begging with unrealistic ideas and suggestions which take no account of pvp reward structure, value and design in gaming.