I won't back down.
There's alcohol and there's alcohol
Household alcohol, both 70% and 91% isopropyl alcohol will break down skin oils and maybe some other simpler, less complex oils, but it will not break down lane oil. Isopropyl alcohol or isopropanol is only 2 carbon more complex, than the simplest alcohol, methyl alcohol or 2 carbon more than ethanol, ethyl alcohol, used for drinking and in gasoline. All 3 are still very simple alcohols.
LaneMasters cleaner is also an alcohol, and industrial strength, multi-carbon alcohol. Those who have used it or even smelled it know how strong it is. It DOES breakdown lane oil. Of that there is also no doubt.
So, yes, alcohol can clean a bowling ball thoroughly. It just depends on which alcohol you are using.
"None are so blind as those who will not see."