As a Morg main here i can say we arent all toxic.. BUT with that being said any support HATES having to run body blocks on enemy CC cause the adc cant stay out of range or has bad positioning period.. Also with the Spell Thief support item Morg gets her gold from poking with soil and sometimes this throws off the adcs waves.. not always cause soil should be the last thing a support maxes out.. but it may take a creep here and there.. dont freak out.. cause 9/10 time the enemy are using those creeps as cover to stay away from her snare..
It may also depend on the adc you play as.. Morg can work great with champs who come with their own form of CC. Whether it be traps or stun, Blinds, etc. But if you are going to go ham try and make sure she is able to use her snare incase things go bad for a retreat and her shield is also available.. shield usually has about an 8-10 sec CD depending on items and lvl...
Also dont fall into the habit of pointing out all the missed snares a morg might have missed.. trust me we know.. and we hate ourselves for it..
If u want to try laning with a chill Morg support add me.. im only a silver/gold lvl player but i can usually hold my own with higher lvls...