Originally Posted by ShowThemHell
If he try to one shot a support, he'll die with that support, so that'll be one carry exchange for 1 support.
About escape mech, look at puck.
Puck has been used in TI2 with great success. Puck also isn't one of the hardest carries in the game. Who cares if you can't kill a Puck? You don't need to shut a puck down that badly. Morphling, on the other hand, can and will rape your team if you don't.
As I posted somewhere else, the concept behind Morphling is nice but it ends up being too powerful in general. The concept of being able to switch between DPS and survivability is nice, but lategame a morph can go full agi morph and still have a lot of HP, 40 base armor, 300 base damage, etc. He ends up being unkillable and having way too much DPS. Of course the counterarguments will be the same as with any other carry:
1. Gank him and you'll be fine
2. Push and end before he comes online
Gank him? Good luck with that. Not saying it's impossible, just disproportionately hard. Push before he comes online? Despite carrying hard, his early game isn't even weak. He's just too strong at any given point in the game.