Yes they should. Hail is what's broken, not Abomasnow itself.
The abusers are broken, hail is perfectly managable in UU. I've had plenty of experiences being near or completely swept by Victini, and Mach punch just murders.
| 1 | Staraptor | 17896 | 19.0643 | - Murderously sweeps hail
| 2 | Donphan | 14334 | 15.2697 |
| 3 | Hitmontop | 14261 | 15.1920 | - Mach Punch
| 4 | Zapdos | 14129 | 15.0513 |
| 5 | Heracross | 13276 | 14.1427 | - See staraptor
| 6 | Arcanine | 12227 | 13.0252 | - Very dangerous as well to hail
| 7 | Chansey | 11445 | 12.1921 | - besides some taunt set, walls hail
| 8 | Milotic | 11376 | 12.1186 | - Walls
| 9 | Espeon | 10936 | 11.6499 |
| 10 | Nidoking | 10686 | 11.3836 | - Really strong and hurts hail, I've seen it happen
| 11 | Celebi | 10629 | 11.3229 | - Possiblity to sweep
| 12 | Roserade | 10502 | 11.1876 |
| 13 | Mew | 10457 | 11.1396 |
| 14 | Victini | 10286 | 10.9575 | - See arcanine
| 15 | Mismagius | 9329 | 9.9380 |
| 16 | Rhyperior | 9216 | 9.8176 |
| 17 | Empoleon | 9138 | 9.7345 | - Walls
| 18 | Flygon | 8655 | 9.2200 |
| 19 | Azelf | 8036 | 8.5606 |
| 20 | Slowbro | 8020 | 8.5435 | Can wall
maybe these werent good examples, but playing hail in UU for a while has given me plenty of experience of how hail is well enough dealt with and not overpowered