Cause Vayne or MF are tough to burst right . . .
Sry but you can't say they have mal and Galio to protect without saying what the other team might have ...
Let's say other team has Mumu and Olaf... or just OLAF. Pop ult ... pop ghost . . . carry vanishes.
Let's say they have Rengar too. Olaf + Mumu + Rengar. Mumu goes pop ult forcing team fight, Olaf pops all and charges carry, Rengar goes in stealth and burst carry too.
We got Galio and Malphite left vs Mumu + Rengar, and maybe Olaf, although he might be dead. But Vayne or MF are already LOOOOOOOOOOOOOOOONG dead.
EDIT: Just to get back on topic, I also don't understand why they removed it though ... but it ain't no big deal.