Pole analysis on the hadron spectroscopy of Shi-Qing Kuang, Ling-Yun Dai, Xian-Wei Kang and De-Liang Yao Eur. Phys. J. C, 80 5 (2020) 433 Published online: 18 May 2020 DOI: 10.1140/epjc/s10052-020-8008-5