That advice is actually employed in Hungary. Feel free to find other primary and secondary roads connected by a secondary_link, you will find little to none. You are making an exception with your edit. 

If you want to make this bicycle route connection, do not break tagging rules (or if you prefer, tagging advices). Use correct tagging instead: split the primary_link at the cycleway crossing, and add the bicycle=yes tag to the connecting way. 

Thank you in advance.