They don’t really have burst damage (depending on Tychus’ build), and wave clear isn’t as crucial on this map if you control the Sentinels. I probably would have gone with an E build with AO at level 1 and Suppression Pulse at 10 (for obvious reasons!). Level 16 could be any of the three, depending on how the match is going at that point, and 20 would be double blind.
Level 4, 7, and 13 would be E talents. It’s not as crazy as it sounds, what with the changes to his E, and the fact that you would have 3 targets for point blank swaps in Muradin, Uther, and Misha. The general armor at level 4 would be good since they have mixed damage types, and you do have a BW for spell armor if needed. Chrono Surge gives you burst damage, and the slow helps both Nova and KTZ. The CDR at 13 means that with all those point blank targets, you have the attack speed, armor, and slow up all the time.
Also note, they have a lot of CC, and with the change giving you Unstoppable on successful swaps, you can dodge quite a bit of it, especially clearing the Lunara slow, with more Es. By being able to just do point blank swaps, you won’t be putting yourself in precarious positions to get the benefits of a successful E. You can also backswap Uther into your Garrosh for potential picks.
It might not have worked, your team’s draft was pretty weird for that map, but at the least, it would have been fun!