Yes, similar to bitcoin. When a mining pool is close to having 51% of the hashrate, the community and the miners themselves call on some of them to mine in another mining pool.
Also, a similar situation can happen today without Asics.
By chance, sometimes I saw coins which had dominant hashrates (more than 60% or even higher) concentrated on one pool.
Of course, it's rarely scenario when all hashrates of the pool controlled by one address/ group / farm, but it is always a very bad signal of potential serious Replay Attacks.