I'd have said onscreen that the ships in Season 1 were based on Hur'q designs from that era of Klingon history and what T'Kuvma's fleet and their allies had to rely on since the Empire had fallen into such instability that other, more traditionally recognizable warships were impossible to come by. That way, if nothing else, the huge discrepancy in looks would have made more sense and we'd actually get a look at Hur'q aesthetics and technology.