Interesting! It occurs to me that you can add "to get" to a lot of passive verbs (such as verbs with -ed or -ing endings) to imply that you are preparing to do something. Most of the examples I can think of that are common parlance have to do with motion: "Get going," "get moving." But you could really add these to a lot of passive verbs and have it make sense (although perhaps be somewhat odd, since this is a bit of a colloquial grammar structure). I can think of "get dancing" and "get talking" as less common verbs I've heard this way. Another common colloquial phrasing that means the same is "get TO [verb]" ("get to moving"). It has a bit of a dialectical feel to it...I even feel weird writing the "g" on the end of those, because in my head it's "get to movin'," "get do dancin'." Haha. Get can also be used with -ing and -ed verbs to kind of turn that verb into adjective, a state of being...like "get vaccinated," "get certified."

I think you should start with "The lecturers contradict each other" instead of the other way around... The way the clauses are reversed above makes the sentence rather difficult to understand. You could say something like, "The lecturers contradict one another when it comes to hypothesizing the main reason for the decline in the cedar population," for example. When possible, always try to eliminate multiple clauses to increase the ease of understanding for the reader.