I personally like that it is not a chliche video! Everybody expected sea, storm, lighthouse, but that is so predictable for me!
I think they were focused on the message of the song making this clip! And that is fine.
In the end, oficial video means absolitely nothing! Remember sweedish one last year!?!?
Well, and so what if those motives are "so predictable"? When something is predictable that is not necessary something "bad" or with "less value". That is something that people expect and people made their expectations based on it. In this case those motives are so strong ones: sea, storm, nature, lighthouse. And considering possible great video makers we have on offer in whole region and previous Nina's video and this amazing song, people (including me) were expecting some spectacular video because this song offers possibilities for that (+ wide range of great video makers in region, IMO Vedad Jašarević, C4D as best one) and as Nina has been doing everything so quality (since we have met her, not only in this esc episode), one more reason for hoping for it.
On the other side, if it (or something) is not a cliche (video), that doesn't necessary means "not cliche → automatically better". Those, as you said, "so predictable" motives offer possibilities for some amazing stories. And if you (not mean you personally) offer me some alternative than it has to be at least on same level as my expectation for me (and other people) to not get dissapointed. This "alternative" scenario for Lighthouse official video is not as near good (idea is really good but realization not, it simply doesn't not look good and spectacular) as it could be in some "sea, storm, nature, lighthouse" video (this idea creates wow effect). So, for that reason I declare it as fail.
Point is, when you offer alternative, offer it at least on same level as "original" (in this case you can call it idea or expectation).
I even think if Nina just recorded few scenes on Hvar for example and someone directed it very well and later incorporated it in preview video, that also could be amazing.
Speaking about this sentence that in the end official video means absolutely nothing, well, I can agree more or less with you. Maybe only small, small part it can affect something but of much bigger importance is stage performance.
But in any case, it is shame if you are doing something and not doing it on best level but "doing it just to do it" (and I have feel this is second time in a row they just do something to "do it" for video). Nina rather could not waste her time on making video if final product is not going to be impressive as it could be and could lead to kind of disappointment and not so great reactions (In general Nina is not like this, she is huge perfectionist and I think she is under pressure and doesn't have much time at the moment). It is obvious they were recording this video shortly, on 2 places only. And if any song of Nina's career so far deserves amazing video, that surely it is this one. Because she can get many fans worldwide and impress them even more.