As the meta currently stands, sniper bots incentivize turtle gameplay. Why? The only counter to a ball of sniper bots + mobile shields + flak is a t2 arty base. Sniper bots hardcounter any mobile unit that isn't a sniper. Mobile t3 artillery deals too little damage to kill the shields. Well microed strats can deal with snipers + mobile aeon shields, but getting multiple strats is, depending on the map, not a very realistic option. And no, it's also not realistic to get a fatboy or megalith up in time.
Even then, strats just won't efficiently work against seraphim mobile shields, leaving you with the only option of making a t2 arty base. Being abused so hard to the point where you're forced to make an arty base is in no way fun or fair to play as it is hard to (timely) establish an arty base on some maps.
A small compromise is that aeon snipers can be dealt with by suiciding air units due to the fact the shields are weaker, but snipers + seraphim shields are absolutely broken. It would be nice to see these shields or snipers reworked.