Hmm, it is not to be inspired but to me it is interesting to see his pro with the kind of build. Sure have difficulties and sustaining his top rank with current changes in the arena and to keep up. He also it is updating his mechs making them more robust.
How many players can make good builds if not with top dollars? Just pure luck with fortune and base L craft not always pay to get items. Even are common builds it is about his capabilities as good player in my opinion.
Also, the current arena suffer a lot with the lack of power players with retired, semi-retired, some no longer paying with deceptions, limited of players to pull or add to clans and then having same players matching one after another with builds impossible hard to beat because no variation in AI in matches. The loop it is too heavy to play.
Lack of gold to help develop the new comers it is frustrating and even me who likes to farm can say there is no hope but to farm everyday and hard to save for improvements.
I will say then it is interesting to have a player messing around with everyone nerves