One possible reason for this refusal could be due to ResearchGate's strict criteria for accepting journals onto its platform. ResearchGate aims to maintain a high standard of academic rigor and credibility, ensuring that only reputable journals are included. While the SJZ may be well-known and established within Switzerland, it might not have met ResearchGate's specific requirements or undergone their rigorous evaluation process.
Another reason could be related to copyright issues. ResearchGate may have encountered challenges in obtaining permission from the SJZ or its publishers to include their content on their platform. Copyright laws can vary between countries, making it difficult for platforms like ResearchGate to navigate these complexities.
Additionally, it is possible that there are technical or logistical reasons behind this refusal. ResearchGate may have limitations in terms of the format or compatibility of articles from certain journals, which could explain why they do not accept content from the SJZ.
I would not accept the rejection. The SJZ is small and probably not internationally known. But in terms of quality, the SJZ is on a par with most other legal journals.