Its not accurate for a multitude of reasons.

According to RE Suspension road race shocks need a rebuild every 3 or 4 years.

Replace oil and seals and sometimes the washer/shim stacks.
The oil eventually gets contaminated and that accelerates wear on seals and metal parts.
Apparently the thin metal washers/shim stacks in the shocks with time deflect and need to be replaced too.

Off road racers in extreme conditions do this a few times a season.

Production car shocks are said to last 50,000 miles. ymmv :)

A set of adjustable racing shocks that cost $2k to $4k+ that get rebuilt for $300 makes sense.
If you have less expensive shocks just replace them in pairs.

The jounce is too random. ;)
How much compression is in a good jounce?

I cant even jounce my race cars or 1 ton truck. :)

Are you road racing where custom-valved shocks are mostly used? If not, standard, HD or sport shocks should be enough options for most owners. However, as always, YMMV.

Sherwood