None of this is true
MHM rolls Intelligence 4 + Occult 5 Doubled by Excellency = 18 Dice DC6 Average 8+ success. Can be used to pick up stuff and when throwing GM ruled it be buffed to deal Agg damage, with line of site range for all of this, so no range limits. And able to deal with groups by picking up massive boulders and whatnot to smash into an area for free
Sandblast strike rolls Dexterity 4 + Athletics 2 no Exellency = 6 dice DC5 = average 3+ success a trivial amount to dodge for any enemy. Limited to 60 years, ranged, and GM ruled cannot be boosted to Agg. And cost a mote per use of it AOE option.
You make mechanical claims without checking your mechanics.
You really shouldn't.
MHM can be activated with an Excellency for 2m, which gives you an average pool of successes of 9 (18 dice rolled at DC6)
DC6 is the default attack roll, but I think its higher for an improvised weapon like a random object.
Thats still a range of, at best, 45 yards (Strength*5)
Sandstrike Blast rolls 4 successes. (Dex 4 + Athletics 2 at DC5 = 3.6 successes, rounded up)
For comparison, Dex 4 + Melee 5 at 6DC averages 5 successes ( 4.5 successes, rounded up)
Theres good reasons why we dont routinely use MHM as an offensive weapon since buying it.
It's line of sight to pick things up and move them around, throwing is a specific action to impart force like flipping a car.
The relevant part of the charm. Moving things within your line of sight doesn't say anything about a limit to how far you can move things.
Not for the M20/V20 line.
Throwing uses throwing rules, like range and lifting.
Relevant section in ExWoD:
System: After a moment spent in concentration, the Infernal spends 1 Essence and rolls her Intelli- gence + Occult against difficulty 6. This Charm re- mains active for the rest of the scene, and allows her to telekinetically lift and move objects within her line of sight. If she tries to wrest an object away from an- other character, or perform fine manipulations, her successes form her dice pool to do so. Otherwise, her successes on the activation roll determine her strength in lifting and moving objects:
Throwing range is Strength*5 for a throwing weapon.
That is affected by the weight of the weapon, mind, which is why a bloodbuffed Red cant simply chuck a motorcycle as a throwing weapon across a football field.
I'd have to open the M20/V20 books to see how that scales down for heavier objects, but its going to drastically drop it.
I'll get back to you on the details; I looked them up before.