While your objection is technically correct it can still be useful (ie simple, straightforward, etc) to phrase things in terms of a goal. Since a goal (pursued by an intelligent being) and optimization pressure (a property of a blind process) are approximately the same thing in the end. In other words, Anthropomorphization can be useful despite not being true in a literal sense.
Certainly this can be misleading to the layman. The term "observer" in quantum mechanics suffers similarly.
A more intuitive and natural phrasing, even though it's invalid in a technical sense. I've noticed this happens when people talk about computers/software as well ("it thinks the variable is set", "it freaks out if it doesn't get a response", etc). Outside of formal writing/presentations, using only technical terminology seems to take a suboptimal amount of effort for both speaker and listener compared to anthropomorphizing (unless, as you mention, the listener is a layman who gets the wrong idea).
It definitely is not useful. Your model should at least attempt to approximate reality, not to depart from it by putting effect before the cause. That way lies madness.
It’s a useful start to move away from “it’s just random” but it’s just so different it doesn’t help in many cases. It’s not approximately the same.
No.
"Optimization pressure" makes it sound as if there is a single metric for optimization, whereas there are a constantly shifting set of different metrics. Worse (or more precisely, more complex) there are frequently multiple different "solutions" for a given metric, and evolution doesn't care. Put a little differently, there is no "optimization" pressure at all: evolution is not attempting to optimize anything (*).
Trying to fit anthropomorphized design onto a process that is absolutely the opposite of that in every way (no intent, multiple outcomes, no optimization) just leads people to not think clearly about this sort of thing.
(*) no, not even "reproductive fitness" - rates of reproduction are subject to massive amounts of environmental "noise", to the degree that minor improvements in offspring survivability will often be invisible over anything other than the very long term. Further, the most desirable rates of reproduction will also vary over time, leading to what once may have appeared to be an improvement into a liability (and vice versa, of course).