That information notice only applies to the UK CAA Licenses - not EASA Licenses, which is probably the type of license you have...
Such Temporary Certificates (TCs) are valid only for UK CAA Part-FCL (or JAR FCL) licence
holders and SFIs whose Competent Authority is the UK CAA
There is a difference (legally) between a UK CAA Part-FCL and an EASA License.
If you have an EASA License then you CANNOT use a temp certificate.
No, its because they are applying a change in EU Regulations.
No, its because they have a lot of applications and only 18 staff who process less than 1 application a day sometimes... fact based on FoI Request.