Looks like you are a business. If your usage of this machine is high I would further multiply the number by 1.1 minimum (1.2 even better). If this number is 7.5HP or less, in general, you should be fine. The multiplier (1.1 or 1.2) will increase the life of the unit by not running it at limit and at higher temps. If the shop has A/C set to 70F that is a big plus and you can use the lower multiplier. If they still suggest the enterprise unit ask them why 10% or 20% margin is not sufficient.

If you are a hobbyist or the machine usage is low, in general, you should be able to use the 7.5 HP unit with a 7.5 HP load.

They may be concerned about in-rush current. Scoring and PF will be turned on after the saw is already on, so the in-rush current will not be simultaneous. PP models have a decent spec for handling the in-rush current.

Do let them know if the shop has AC. My shop can get to 90F on worst days and the 20F delta is significant.

HTH,