It's impossible to use that brute force method to remove some crown races without damaging the fork crown. There wasn't enough room between the Chris King headset and crown race and my older Trek 5900 OCLV fork to use the brute force method without damage.
If the method requires re-facing the crown to repair the damage, it's not a good method. And in the end it would waste more money in time and energy than the cost of a Park Tool crown race puller. While $270 seems expensive for a typical cyclist who might use it once or twice in a lifetime, that's cheap compared with the cost of liability for screwing up the job and needing to repair or replace a fork.