The issue with Morelos is the reliability.
We tend to fall into the trap of relying heavily on him and each season there is an issue, infact the only season I can't remember there being an issue with Morelos is the 55 season. This wouldn't be a major issue if we didn't have such a significant financial outlay on Morelos or the issues weren't self inflicted but both are true.
We have had seasons de-railed because of Morelos issues which has costs us vital points, again this wouldn't be a major issue if we didn't have so much resources tied up in Morelos and relied so heavily on him.
I consider Morelos a bit like an old unreliable Range Rover, cracking to have when it's running but what's the point in having it if it breaks down every few months, might as well just get something a bit more modest and reliable.