Your definition of what constitutes “high demand” isn’t clear to me. Even British Lion are playing small venues. Without artists touring this circuit, the club scene would be dead. There is demand for bands that can consistently fill clubs, and British Lion and Blaze Bayley clearly do exactly that. Being booked year after year, and repeatedly returning to the same venues, should reasonably be considered a sign of being in demand, albeit within a club circuit of smaller venues. If financial success or stadium-level shows are the only criteria for “high demand,” then fine, British Lion and Blaze Bayley would not qualify.
He did a European tour in December, selling out half the club shows. He is doing it again in May. So a total of 30 shows in 6 months!