srtext 2048 length limit

I noticed that the srtext column in the spatial_ref_sys table has a length
limit of 2048 characters. This seems quite restrictive, especially
considering the WKT standard does not prescribe a specific maximum length.
In fact, it recommends a maximum of 4096 characters for CRS WKT strings.
The current limit is therefore only half of what the standard suggests as a
recommended maximum.

Could you please explain the rationale behind this strict limit, and could
its extension be considered?