I give Vettel a ton of credit for his professionalism at Ferrari. Few have as much right to beeyotch than Vettel yet he sticks up for his guys in the garage and at times is even encouraging in his words.
If Alonso was at Ferrari he would be a negative drag, demand a better car and pieces than Leclerc, demand priority in the race and pit strategy and blame everyone but himself when he tanked.
I don't hate Alonso, he's good entertainment for what spills out of his mouth more so than what he does on a track. Remember his feud with Horner and Marko about who wanted who and what year that actually was? Dude is sad ego maniac with no filter. Awesome for a sound bite, terrible in a team.
With Ferrari, Red Bull and Mercedes, look who Alonso got passed over by: Leclerc, Ghastly/Albon and Bottas. Think on that a minute.
Binotto of Ferrari didn't say "it pleases us" to know Alonso is available, because it doesn't.