I don’t mean to be disrespectful but there is a lot of evidence pointing towards Keith and lance both being LGBT and that representation is really important. Whereas allurance is yet another example of an awkward and rushed attempt to have a heterosexual relationship between the main boy and girl.
But seeing as your username is supercowgirl, you’re a homophobic horse girl who chooses to deny blatant flirting because it doesn’t fit your opinion. Ship whatever you want. I don’t care as long as it’s not harmful or you don’t attack other ships but please take into consideration that lance and Keith could have and should have been canon for various positive reasons. (they also have a lot of chemistry if you pay attention)