I mean, that's a fair criticism, but I still see this as a situation of creativity and imagination VS efficiency and simplicity.
And with that viewpoint, I see the "name mashing" style of naming to be boring, very "cookie cutter"-esque, and lacking a lot of heart, which is very funny and ironic to me considering the topic of relationships, which is the point of shipping. Or at least my point.
Yes, it makes things easier, but you know what else is easier? Not getting out of bed when you're too tired to go in to work. Not showering because you just don't feel like it. Not eating because you're just not in the mood, or eating too much. All these things are technically easier, but they're not necessarily better. And that's exactly how I feel about ship names as they are.
And besides, when I joined the FNDM, I learned a lot of the main ship names long before I even thought of getting into RWBY shipping myself. If the community is large enough and has enough fanart, it becomes increasingly harder to not find ship art with fancier names, because you already get familiar with it though pattern recognition and familiarity. Now, if a community is too small to make such a thing work, I can understand using the name fusion method. But fanbases like us for example, who are or used to be well known for being very creative, have very little reasoning in my eyes to be lazy.